Title:
Counting marker
United States Patent 3393299


Inventors:
Baker, Vern E.
Application Number:
US48326865A
Publication Date:
07/16/1968
Filing Date:
08/27/1965
Assignee:
JACK STRONG ELECTRIC CO INC
Primary Class:
Other Classes:
346/14R, 377/15, 377/24.2, 377/55
International Classes:
B43K29/08; G06M1/10; G06M11/00
View Patent Images:
US Patent References:
3254836Teachers' correction pen1966-06-07
3064888Counting marker1962-11-20
2557450Linear measuring device1951-06-19